Denatured alcohol containing mesityl oxide



Patented Feb.'11 1941 UNITED STATES PATENT OFFICE 2,231,664 nam'rnann ALCOHOL CONTAINING MESITYL'OXIDE,

Louis J. Figg, Jr., Kingsport, Tenn., assignor-to I Eastman Kodak Company, Rochester, N. Y., a

corporation of New Jersey No Drawing.

Application October 14, 1937, Serial No. 168,968

1 Claim. 252-366) CH:.CO.CH1C(CH3) 1,975,091, and 1,975,092. While I may use a me-' :5 chanical mixture of the aliphatic ketone with the hardwood denaturants, I prefer to introduce the mesityl oxide, along with the hardwood denaturant oils, into the upper portions of a bubblecup fractionating column, where they are met by 30 the ascending vapors of ethyl alcoholor of a mixture of ethyl alcohol and denatm'ing grade isopropanol, in the manner which is fully set forth in my Patent 1,975,091. The proportions in which the mesityl oxide may be used may uvarywidely.

As an illustrative example, I may introduce into the column, in metered proportions:

' Per cent by volume 95% ethyl alcohol 36.0 6 Denaturing grade'isopropanol 24.0 Light acid nil 2.0 Washed alcohol oil 3.0 Allyl alcohol fraction 2.5 Neutral 2.5 10 Acetone 10.0 Mesityl oxide 20.0

The light acid oil and washed alcohol oil and the allyl alcohol traction referred to are described in my U. S. Patent 1,975,091. Neutral oil is made by adding a 15% solution of sodium hydroxide to hardwood creosote oils and separating the wood oils which are insoluble in the sodium hydroxide solution. The separated oil is then given a vacuum distillation to stabilize it to a lemon-yellow color.

'From0.5 to 5 parts, or even more, of such a combination as that described above may be used per 100 partsof 95% alcohol. My novel denaturant may also be used with any other denaturants with which it may be found to be com- Patible.

What I claim as my invention and desire to be secured by Letters Patent of the United States is:

Industrial ethyl alcohol-denatured with 0.5 to 5 parts of mesityl oxide, as an essential denaturing element. per 100 parts of 95% .ethyl alcohol.

LOUIS J. FIGG, JR. 

